3-30 ENGINE
• Re-finish the valve guide holes in the cylinder head with the
reamer and handle.
( 09916-34580: Valve guide reamer (10.8 mm)
09916-34542: Reamer handle
"
• Oil the stem hole of each valve guide and drive the guide into
the guide hole with the special tools.
NOTE:
Install the valve guide until the attachment contacts with the cyl-
inder head.
( 09916-57330: Valve guide installer
09916-57340: Valve guide installer attachment
"
• After fitting all valve guides, re-finish their guiding bores with
the reamer. Be sure to clean and oil the guide after reaming.
( 09916-34570: Valve guide reamer (5.0 mm)
09916-34542: Reamer handle
NOTE:
Insert the reamer from the combustion chamber and always turn
the reamer handle clockwise.
VALVE SEAT WIDTH
• Coat the valve seat with prussian blue uniformly. Fit the valve
and tap the coated seat with the valve face in a rotating man-
ner, in order to obtain a clear impression of the seating con-
tact. In this operation, use the valve lapper to hold the valve
head.
• The ring-like dye impression left on the valve face must be
continuous – without any break. In addition, the width of the
dye ring, which is the visualized seat “width”, must be within
the following specification:
When refinishing or removing the reamer from the
valve guide hole, always turn it clockwise.
Failure to oil the valve guide hole before driving the
new guide into place may result in a damaged guide or
head.
Valve guide
Cylinder head
To Next Page
Loading...
